Cooling apparatus.



No. 872,175. PATENTED Nov.- 26, 190?. W. GRIBSSER.

000mm APPARATUS.

APPLICATION FILED 33.19, 1906.

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.m dmwfi No. 872,175. I PATENTED NOT-26. 1907.

' W. GRIESS'ER.

.GOOLING APPARATUS.

APPLICATION FILED PER. 19, 1906.

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fizvezzi or UNITED STATES PATENT OFFICE.-

WILHELM GRIESSER, OF .TOPLIN, MISSOURI, ASSIGNOR TO OLGA KOEHN, DOING BUSINESS UNDER THE NAME OF BREWERY EQUIPMENT & SUPPLY (10., OF NEW YORK, N. Y.

Specification of Letters Patent.

COOLING APPARATUS.

Patented Nov. 26, 1907.

Application filed February 19, 1906- Serial No. 301,886.

To all whom it may concern:

Be it known that I, WILHELM GnIEssER, a citizen of the United States, residing at J 0plin, in the county of Jasper and State of Missouri, have invented new and useful Improvements in Cooling Apparatus, of which the following is a specification.

This invention is intended, primarily, for

application in connection with a refrigerating system. In such systems the gas, usually ammonia, passing from the compressor is very hot, and it is the practice to pass the compressed ammonia through a coil of pi es surrounded by water, or in the space etween two pipes through which water circusystem, and relates to that type of cooler employing triple pipes. In such coolers the ammonia ows in the space between two pipes carrying water.

The general purpose to be subserved by the invention is to afford the largest possible cooling surface in proportion to the amount of water used and the volume of gas circulating through the pipes, by so doing effecting a reduction in the cost of construction and run-s ning expenses as compared with the systems now generally in vogue.

As special objects of the invention I aim to improve the manner of connecting up the various ipes and to improve the construction of t e turns or heads connecting alternating pipes at opposite ends of the cooler.

In order that my invention maybe clearly understood I have-illustrated the same in the accompanying drawings, in which:

Figure 1 is a side elevation of my improved cooling apparatus; Fig. 2 is an end eleva tion; Fig. 3 is a transverse vertical section taken upon the line 3-3 of Fig. 1; Fig. 4 is a vertical section of head, and Fig. 5 is a horizontal section of the same.

Like characters refer to like parts throughout the several figures.

Referring now to the drawings, the numerals 1 indicate the circulating pipes of the cooler, which pipes are alternately connected at opposite ends of the apparatus to form a continuous coil by means of heads indicated generally by 2 in Fig. 1. Each of the pipes 1 comprises an inner pipe 3 for water, a pipe 4 surrounding the same and providing a space 5 for ammonia, and a pipe 6 surrounding the pipe 4 and providing a space 7 for water. As is usual in this character of apparatus, ammonia and water circulate in opposite directions through the apparatus and thus I have shown an inlet for the water pipe 3 and an inlet for the water pipe 6 at the lower left hand side of the apparatus, said inlets being indicated, respectively, by the numerals 8 and 9, and in a similar location I have shown the outlet for the liquid ammonia pipe 4, said outlet being indicated by 10.

The inlet for the ammonia is shown at the upper right-hand side of the apparatus in Fig. 1 and is indicated by 11, and the water outlets from the pipes 3 and 6 are similarly located and indicated, respectively, by the numerals 12 and 13. The manner of connecting these various pipes at opposite ends of the apparatus to form a coil will now be described, and as all of the heads 2 are identical in construction a description of one of these headsor, in other words, the manner of connecting up two of the pipes 1will suffice for the description of all of the other heads.

The heads 46 are provided at the top and bottom with apertured lugs as 25 (see Fig. 2) adapted to receive bolts as 26 whereby said heads can be firmly united in superimposed relation.

In order to permit the apparatus to be shipped in sections, it is necessary to "form the heads 46 and 50, between alternate coils at opposite ends of the apparatus, in two parts. Such sectional heads are provided at their meeting edges with apertured lugs 40 and 41, respectively, to receive bolts 42 and 43, respectively. The lowermost head 46 at each end of the apparatus has secured to it standards or pedestals 44 for supporting the apparatus.

45 indicates a support for bracing the pipes 1 centrally of their length.

Referring now to Fig. 4, the head 46, has its outer wall 16 provided with apertures for the pipes 4 of considerably larger diameter than said pipes. On each of said pipes 4 is firmly secured a ring 47, which are placed on said pipes while hot so that when they contract they will be firmly connected to said pipes. The rings 47 are then finished off to make them of a diameter to readily pass through the pipes 6. The rings 47 are surrounded by suitable gaskets 48, seated in recesses in the wall 16, which are held in place by rings 47.

Secured on the outer end of each of the pipes 4 is a collar 49, the joint being made gas-tight by solder The collars 49 after being secured are tooled down to a diameter to permit them to pass through the sleeves 20. The head 50 is provided, as in the previous case, with openings for receiving the ends of the pipes 4, these openings, however, being surrounded by annular projecting flanges 51 which are adapted to receive smooth end portions 52 of the pipes 4 and to project within recesses 53 formed in the outer side of the collars 49 and containing gaskets 54. The collars 49 are undercut on their rear sides, as indicated at 55. The head 50 is provided on opposite sides at each end with projecting ears 56 which are apertured to receive bolts 57., Said bolts have a hooked end 58 which engage the undercut portion of the collars 49. Said bolts are of a length to pass through the apertured lugs 23 of the sleeves 20 surrounding the pipe 3 at the outer side of the head 50, and by means of nuts 59 screwed on said bolts the head 50 is firmly pressed into engagement with the ends of the pipes 4, and with gaskets 54 surrounding said pipes. Nuts 60, secured on the outer ends of said bolts, press the sleeves 20 into firm engagement with the gaskets 32, as shown.

The construction described not only presents secure gas-tight joints for the ammonia pipes, but also permits the ammonia pipes 4 to be readily removed from the apparatus .for the purpose of cleansing and to permit access to be readily had to the other pipes.

The collars 49 having been once secured on the ends of the pipes 4, and tested as to pres sure, it is not desirable to remove these collars at any time, and, in fact, it would be a difficult matter to do so. The ends of the pipes 4 can be readily removed from the head 50, however, and by enlarging the a ertures in the front wall 16 of the head 46, w ch enlargement necessitates the employment of the rings 47, as described, the pipes 4 may be withdrawn from the apparatus as the collars 49 can pass through the sleeves 20 and the pipes 6. The heads 50, and thereturn-bend 35, being removed it will be seen that access can then be had to the pipes 3 and 6 so that all of the pipes can be readily cleaned at any time.

While I have described a cooling apparatus and stated that it is intended more particularly for use in a refrigerating system, it will be apparent nevertheless that a series of pipes connected up as described can be utilized for heating purposes as well as for cool.- ing; for instance, steam could be passed. through the intermediate pipes for the purpose of heating the water passing through the inner and outer pipes.

Having thus fully described theinventlon what I claim as new and desire to secure by Letters Patent, is:

1. In a cooling apparatus, in combination with a series of pipe-units, each of which comprises a plurality of pipes concentrically arranged one within the other in spaced relation, hollow heads uniting the ends of corresponding pipes of adjacent units, one of said heads receiving the ends of the outermost pipes of two units and having the intermediate pipes continuing therethrough, collars se cured on the outer ends of said intermediatepipes, said head having apertures of a size to permit said intermediate pipes with their attached collars to be withdrawn therethrough, means for forming gas-tight joints at said apertures, a second head receiving the ends of said intermediate pipes and having the inner-' most pipes continuing therethrough, and a return-bend connecting the ends of said innermost pipes.

2. In a cooling apparatus, in combination with a series of pipe-units, each of which comprises a plurality of pipes concentrically arranged one within the other in spaced relation, hollow heads uniting the ends of corresponding pipes of adjacent units, one of said heads receiving the ends of the outermost pipes of two units and having the intermediate pipes continuing therethrough,'collars secured on the outer ends of said intermediate pipes, said head having apertures of a size to permit said intermediate pipes with their attached collars to be withdrawn therethrough, means for forming gas-tight joints at said apertures, a second head receiving the ends of said intermediate pipes and cooperating with said collars to form a gas-tight joint and having the innermost pipes continuing therethrough, and a return-bend connecting the ends of said innermost pipes.

3. In a cooling apparatus, in combination with a series of pipe-units, each of which comprises a plurality of pipes concentrically arranged one within the other in spaced relation, hollow heads uniting the ends of corresponding pipes of adjacent units, one of said heads receiving the ends of the outermost pipes of two units and having the intermediate pipes continuing therethrough, rings in terposed between said intermediate pipes and said head, means for forming a gas-tight joint between said head and said rings, collars secured on the outer ends of said intermediate pipes, a second head receiving the ends of said intermediate pipes and cooperating with said collars to form a gas-tight joint and having the innermost pipes continuing therethrough, and a return-bend connecting the ends of said innermost pipes.

4. In a cooling apparatus, in combination with a series of pipe-units, each of which comprises a plurality of pipes concentrically arranged one within the other in spaced relation, hollow heads uniting the ends of corresponding pipes of adjacent units, one of said heads receiving the ends of the outermost pipes of two units and having the intermedi- .ate pipes continuing therethrough, collars secured on the outer ends of said intermediate pipes, a second head receiving the ends of said intermediate pipes and having the innermost pipes continuing therethrough and cooperating with sald collars to form a gastlght joint, said head being provided with apertured lugs, means for forming gas-tight joints between said innermost pipes and the latter head comprising sleeves surrounding said pipes and having apertured lugs, a return-bend connecting the outer ends of said innermost pipes, bolts, each of which has a head engaged over one of said collars, and a screw-threaded shank passed through corresponding lugs of said second head and said sleeves, and nuts on said bolts screwed arranged one within the other in spaced relation, hollow heads uniting the ends of corresponding pipes of adjacent units, one of said heads receiving the ends of the outermost pipes of two units and having the intermediate pipes continuing therethrough, a second head receiving the ends of said intermediate pipes and having the innermost pipes continuing therethrough, a return-bend connecting the ends of said innermost pipes, a gastight joint connecting the said intermediate pipes with the second-named head, said oint comprising collars secured on the ends of said. intermediate pipes, and a connection between said intermediate pipes and the firstnamed head' In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. WILI-IELM GRIESSER.

l/Vitnesses:

HENRYJ. RoBEsoN,

CHAS. W. Gmnssnn 

